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प्रश्न
Explain the following laboratory method for the preparation of dioxygen:
Thermal decomposition of hydrogen peroxide.
टीपा लिहा
उत्तर
By the thermal decomposition of hydrogen peroxide:
The thermal decomposition of hydrogen peroxide in the presence of finely divided metal and manganese dioxide used as catalyst gives oxygen.
\[\ce{2H2O2(aq) ->[heat][MnO2] 2H2O(l) + O2(g)}\]
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